JP2002153005A - Rotary machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To overcome the problem of the conventional rotary machines such that coils wound on the salient poles on a core with insulators in-between and then the ends of the coils being connected with a member for connection, it is difficult to ensure accuracy of the positions of the coil ends and the like and the member for connection relative to each other. SOLUTION: In a rotary machine, a stator 1 thereof is provided with a core 3 with the plurality of a salient poles 2 radially arranged thereon, a coils 5 wound on the respective salient poles 2 with insulators 4 in-between, and a printed board 6 as the member for connection for connecting the ends of the coils 5 on one side in the direction of the axis of the stator 1. The insulators 4 are provided with terminals 15 and 16 penetrating the insulators in the direction of the axis of the stator 1. The ends of the terminals 15 and 16 on one side are used as connecting terminals 15A and 16A for connection with the printed board 6. Thus the accuracy of the positions of the connecting terminals 15A and 16A and the printed board 6 relative to each other is ensured, and further, the connecting terminals 15B and 16B at the other ends of the terminals 15 and 16 and the ends of the coils 5 are connected with each other.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotating machine such as a motor or a generator, and more particularly to an improvement in connection of coils in a stator.

[0002]

2. Description of the Related Art Conventionally, as a structure of a stator of a rotating machine, for example, there is one disclosed in Japanese Patent Application Laid-Open No. 7-39099. The publication discloses a stator core having a plurality of salient poles projecting radially, an insulating holder for covering the stator core and insulating and winding a coil, a coil wound on the insulating holder, and an axial direction of the insulating holder. In a stator (stator) of a rotating electric machine (rotating machine) having a printed board disposed at an end, an axial guide groove is provided on an outer peripheral surface of an annular portion provided at the center of an insulating holder. Describes that a wire end of a coil is inserted to be self-supporting, the self-standing wire end is inserted into a hole provided in a printed circuit board, and the wire end is soldered to the printed circuit board.
Further, the publication describes, as a conventional technique, that a terminal to be inserted into a hole of a printed circuit board is provided on an insulating holder, and a wire end of a coil is soldered to the terminal.

[0003]

By the way, in the stator of the rotating machine as described above, there are a plurality of connection points between the wire ends of the coil and the printed circuit board. In particular, after the coil is wound around each salient pole, In a stator having a structure in which salient poles are assembled to a core body, wire ends on both sides of each coil are connected to a connection member such as a printed circuit board, so that the number of connection points on both sides is twice the number of salient poles.

However, in a conventional stator of a rotating machine, in a configuration in which a wire end of a coil is made to stand by a guide groove of an insulating holder, and the wire end is inserted into a hole of a printed circuit board and soldered, If the copper wire is easily bent due to its nature, and if at least one wire end of the coil is bent, it will be difficult to assemble the wire end with the printed circuit board. In general, the insulation holder is made of synthetic resin, so the heat generated during soldering deforms the insulation holder, causing the terminal to bend. There was a problem that it was difficult to assemble with a substrate.

In other words, in the related art, it is difficult to secure the positional accuracy between the connection portion, which is the wire end or terminal of the coil, and the connection member, which is the printed circuit board. There is a problem that securing is more difficult, and solving such a problem has been a problem.

[0006]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems, and secures the positional accuracy between a terminal to which a wire end of a coil is connected and a connecting member so that both can be satisfactorily assembled. The aim is to provide a rotating machine that can do this.

[0007]

According to a first aspect of the present invention, there is provided a rotating machine comprising: a core having a plurality of salient poles arranged radially on a stator; and a coil wound around each salient pole via an insulator. A rotating machine having a connection member for connecting a wire end of each coil on one side in the axial direction of the stator, wherein the insulator is provided with a terminal penetrating in the axial direction of the stator while being insulated by the insulator,
One end of the terminal is used as a connection terminal with the connection member, and the other end of the terminal is used as a connection terminal with the wire end of the coil. The above configuration is a means for solving the conventional problems.

[0008]

In the rotating machine according to the first aspect of the present invention,
In the stator, an insulator made of synthetic resin is interposed between the salient pole of the core and the coil, and the insulator is provided with a terminal penetrating in the axial direction of the stator while being insulated by the insulator. This terminal can be easily integrated with the insulator by, for example, setting the terminal in a mold of the insulator and molding the insulator.

One end of the terminal is used as a connection terminal for a connection member provided from one side in the axial direction of the stator. Also, the other end of the terminal is used as a connection terminal with the wire end of the coil, and this connection terminal is connected to the wire end of the coil by connection means such as soldering or welding. At this time, for example, the insulator may be partially deformed due to heat due to soldering, but the connection terminal with the connection member and the connection terminal with the wire end of the coil are located on opposite sides of the insulator. Therefore, the thermal effect stops around the connection terminal with the wire end of the coil, and the thermal effect does not reach the connection terminal side with the connection member at all, and the connection terminal at one end of the terminal and the connection member Is reliably maintained.

[0010]

According to the rotating machine according to the first aspect of the present invention, the insulator interposed between the salient pole of the core and the coil is provided so that one end of the insulator penetrates in the axial direction of the stator and the connecting member. By providing a terminal having a connection terminal of the other end and a connection terminal of the other end with the wire end of the coil, after connecting the connection terminal of the other end of the terminal and the wire end of the coil by soldering or the like, The position accuracy of the connection terminal at one end of the terminal and the connection member can be reliably maintained, and both assemblies can be performed very well.Especially, after winding the coil around each salient pole, Even if the stator has a structure to be assembled to the core body, that is, a stator having many connection points between the coil side and the connection member side, the connection terminal at one end of the terminal and the connection member can be easily and reliably assembled. Quality and quality It is possible to contribute to and improving the production of.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a rotating machine according to the present invention will be described below with reference to the drawings.

The rotating machine in this embodiment is a brushless motor, and a stator 1 partially shown in FIG. 3 has a core 3 in which a large number of salient poles 2 are radially arranged on a ring-shaped main body.
And a coil 5 wound around each salient pole 2 via an insulator 4 made of synthetic resin, and one side in the axial direction of the stator 1 (FIG. 3).
A ring-shaped printed circuit board 6 is provided as a connection member for connecting the wire ends of the coils 5 on the upper side in FIG.

The main body of the core 3 is provided with positioning pins 8 which engage with positioning holes 7 formed in the printed circuit board 6. The engagement with the positioning holes 7 and the positioning pins 8
It is performed in several places.

The salient pole 2 and the insulator 4 are separately assembled as shown in FIG. The core 3 has, at one end, an engagement projection 9 having a substantially dovetail cross section in the axial direction of the stator 1, and has an overhang 10 at the other end. On the other hand, on the outer peripheral surface of the main body of the core 3, engagement recesses (not shown) each having a substantially dovetail cross section are formed corresponding to the number of salient poles 2. The salient pole 2 is fitted on the insulator 4, and after the coil 5 is wound around the insulator 4, the engaging projection 9 is engaged with the engaging concave portion of the main body to form the core 3.

Therefore, in the rotating machine of this embodiment, the wire ends on both sides of the coil 5 in each salient pole 2 are
The number of connection points between the coil 5 and the printed circuit board 6 is twice the number of the salient poles 2. Also,
Mounting holes 11 corresponding to connection terminals of terminals 15 and 16 described later are formed in the printed circuit board 6 at predetermined intervals along the circumferential direction.

The insulator 4 is made of a synthetic resin, and has a hollow portion 12 having a rectangular cross section for fitting the salient pole 2 in a penetrating state.
And flanges 13 and 14 for restricting both sides of the coil 5 at both ends, and the axis of the stator 1 is insulated by the insulator 4 on the flange 14 on the body side of the core 3. Two terminals 15, 16 penetrating in the direction are provided. Each terminal 15,
In FIG. 16, one upper end in FIG. 2 is used as connection terminals 15A and 16A with the printed circuit board 6, and the other lower end in FIG. 2 is used as connection terminals 15B and 16B with the wire end of the coil 5.

Here, the two terminals 15 and 16 are:
A metal member having sufficient strength as compared with the copper wire of the coil 5, as shown in FIGS. 1 (a) and 1 (b), both ends of which are initially integrated by connecting portions 17 and 18. And formed by appropriate metal working. And
In the molding die of the insulator 4 made of synthetic resin, the insulator 4 is held by the connection terminals 15A, 16A, 15B, 16B and the connecting portions 17, 18.
By being molded, it is integrated with the insulator 4.

After the insulator 4 is formed, both terminals 15 and 16 are connected to the respective connection terminals 15A, 16A and 15A.
B, 16B and connecting parts 17, 18 are exposed,
The intermediate portion is buried in the resin of the insulator 4 and thereafter, as shown in FIGS. 1 (c) and (d),
It is separated by cutting off the holding parts 17, 18 on both sides.

Then, the above-mentioned insulator 4 is attached to the insulator 4.
After winding the coil 5 by fitting
As shown in (d), the wire end (C) of the coil 5 is connected to the connection terminals 15B, 16B at the other ends of the terminals 15, 16. For this connection, connection means such as soldering or welding is used.

At this time, in the rotating machine, the insulator 4 may be partially deformed by, for example, heat generated by soldering, but the connection terminals 15A and 16A with the printed circuit board 6 may be formed.
And the connection terminals 15B, 16B with the wire ends of the coil 5 are located on opposite sides with the insulator 4 interposed therebetween.
6B, and stops at the connection terminal 15 with the printed circuit board 6.
There is no thermal influence on the A, 16A side.

Therefore, the positional accuracy between the connection terminals 15A, 16A at one end of the terminals 15, 16 and the mounting hole 11 of the printed circuit board 6 does not change at all.
Despite the large number of connection portions between the coil 5 side and the printed circuit board 6 side, the printed circuit board 6 can be very easily and reliably assembled to the large number of connection terminals 15A, 16A. After that, the connection terminals 15A, 16A and the printed circuit board 6 are completely connected by soldering or the like.

As described above, in the rotating machine of the above embodiment, the mounting property of the printed circuit board 6 to the large number of connection terminals 15A and 16A is very good, and the work efficiency is improved.
Improvements in quality and productivity can be realized.

The detailed configuration of each part of the rotating machine according to the present invention is not limited to the above-described embodiment.
The shapes of the core having salient poles, the insulator, the coil, the connection member, and the like can be changed, and the means for integrating the insulator and the terminal is not limited to the above embodiment.

[Brief description of the drawings]

FIG. 1 shows one embodiment of a rotating machine according to the present invention.
End view (a) and side view (b) of an insulator illustrating a state before separation of two terminals, end view (c) and side view (d) of an insulator illustrating a state after separation of two terminals. It is.

FIG. 2 is a perspective view illustrating a salient pole and an insulator in an exploded state.

FIG. 3 is a perspective view showing a part of a stator.

[Brief Description of Reference Codes] 1 Stator 2 Salient pole 3 Core 4 Insulator 5 Coil 6 Printed circuit board (connection member) 15 16 Terminal 15A 16A Connection terminal to connection member 15B 16B Connection terminal to coil wire end

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 5H002 AA07 AB01 AC03 AC08 AE08 5H603 AA03 AA04 AA09 BB01 BB09 BB12 CA01 CA05 CB03 CB04 CB12 CB18 CB23 CB26 CC11 CD01 CD04 CD14 CD21 CE01 EE01 EE09 EE12 EE13 FA16 BB10 CC05 CC16 DA14 DB01 PB02 PB03 PC01 PC03 QB03 QB14 5H615 AA01 BB01 BB07 BB14 BB16 PP01 PP14 PP15 QQ02 QQ09 QQ19 SS11 SS16 SS18 TT26

Claims (1)

[Claims] 1. A core in which a plurality of salient poles are radially arranged on a stator, a coil wound around each salient pole via an insulator, and a wire end for connecting a wire end of each coil on one axial side of the stator. A rotating machine provided with a member, wherein an insulator is provided with a terminal penetrating in the axial direction of a stator while being insulated by the insulator, one end of the terminal is used as a connection terminal with a connection member, and the other end of the terminal is provided. A rotating machine characterized in that an end is a connection terminal with a wire end of a coil.